A small web application that can be used to convert Arabic numbers into Roman numerals, e.g. 1984 => MCMLXXXIV.

First, make sure Python 3 and Flask are installed (pip install Flask).

To start the application, run the following in the backend directory:

Linux:

export FLASK_APP=app.py
flask run

Windows:

set FLASK_APP=app.py
flask run

Then navigate your browser to http:https://localhost:5000.

Note: in a real-world application, the static frontend files would probably not be served by the backend application, but by a dedicated web server, e.g. nginx.

To start the backend in development mode, which will watch the code for file changes:

Linux:

export FLASK_DEBUG=1
flask run

Windows:

set FLASK_DEBUG=1
flask run

To start the frontend in development mode, go to the frontend directory and use npm start.

To push the compiled frontend files to the backend static folder, use npm run static.

First run pip install pytest. From the backend folder, then run pytest.

From the frontend folder, run npm test.